Earnings Per Share [Abstract]
Numerator for basic and diluted earnings per share:
Numerator for Basic and Diluted Earnings Per Share [Abstract]
-- None. No documentation exists for this element. --
Net income
Net Income (Loss) Attributable to Parent
Denominator:
Denominator for Basic and Diluted Earnings Per Share [Abstract]
-- None. No documentation exists for this element. --
Basic shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Basic
Dilutive effect of outstanding stock awards (in shares)
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements
Dilutive shares outstanding (in shares)
Weighted Average Number of Shares Outstanding, Diluted
Basic income (in USD per share)
Earnings Per Share, Basic
Diluted income (in USD per share)
Earnings Per Share, Diluted
Environmental Remediation Obligations [Abstract]
Site Contingency [Table]
Site Contingency [Table]
Environmental Remediation Site [Axis]
Environmental Remediation Site [Axis]
Environmental Remediation Site [Domain]
Environmental Remediation Site [Domain]
Remedial Liabilities for Landfill Sites
Remedial Liabilities for Landfill Sites [Member]
This element represents the details that pertain to the remedial liability for landfill sites.
Remedial Liabilities for Inactive Sites
Remedial Liabilities for Inactive Sites [Member]
This element represents the details that pertain to the remedial liabilities for inactive sites.
Remedial Liabilities (Including Superfund) for Non-Landfill Operations
Remedial Liabilities (Including Superfund) for Non-Landfill Operations [Member]
This element represents the details that pertain to the remedial liabilities for non-landfill sites.
Remedial liabilities
Site Contingency [Line Items]
Accrual for Environmental Loss Contingencies [Roll Forward]
Accrual for Environmental Loss Contingencies [Roll Forward]
Balance at January 1, 2019
Accrual for Environmental Loss Contingencies
Accretion
Accrual for Environmental Loss Contingencies, Charges to Expense for New Losses
Changes in estimates recorded to statement of operations
Accrual for Environmental Loss Contingencies, Revision in Estimates
Expenditures
Accrual for Environmental Loss Contingencies, Payments
Currency translation and other
Accrual for Environmental Loss Contingencies, Increase (Decrease) for Currency Translation and Other
The increase or decrease in the accrual for environmental loss contingencies, during the reporting period that is related to currency translations and other adjustments.
Balance at June 30, 2019
REMEDIAL LIABILITIES
Environmental Loss Contingency Disclosure [Text Block]
Goodwill and Intangible Assets Disclosure [Abstract]
GOODWILL AND OTHER INTANGIBLE ASSETS
Goodwill and Intangible Assets Disclosure [Text Block]
Debt Disclosure [Abstract]
Summary of the entity's financial arrangements
Schedule of Long-term Debt Instruments [Table Text Block]
Summary of redemption prices
Debt Instrument Redemption [Table Text Block]
Business Combinations [Abstract]
BUSINESS COMBINATIONS
Business Combination Disclosure [Text Block]
Reconciliation of basic and diluted earnings per share computations
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Changes to remedial liabilities
Schedule of Environmental Loss Contingencies by Site [Table Text Block]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table]
Award Type [Axis]
Award Type [Axis]
Award Type [Domain]
Award Type [Domain]
Performance stock awards
Performance Stock Awards [Member]
Performance Stock Awards [Member]
Restricted stock awards
Restricted Stock [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from computation of earning per share (in shares)
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount
Revenue from Contract with Customer [Abstract]
Receivables
Contract with Customer, Asset, Receivables, Net
Contract with Customer, Asset, Receivables, Net
Contract assets (unbilled receivables)
Contract with Customer, Asset, after Allowance for Credit Loss
Contract liabilities (deferred revenue)
Contract with Customer, Liability
Share-based Payment Arrangement [Abstract]
Authorized repurchase amount
Stock Repurchase Program, Authorized Amount
Repurchases of common stock (in shares)
Stock Repurchased and Retired During Period, Shares
Repurchases of common stock
Stock Repurchased and Retired During Period, Value
Remaining available repurchase amount
Stock Repurchase Program, Remaining Authorized Repurchase Amount
Cover page.
Document Type
Document Type
Document Quarterly Report
Document Quarterly Report
Document Period End Date
Document Period End Date
Document Transition Report
Document Transition Report
Entity File Number
Entity File Number
Entity Registrant Name
Entity Registrant Name
Entity Incorporation, State or Country Code
Entity Incorporation, State or Country Code
Entity Tax Identification Number
Entity Tax Identification Number
Entity Address, Address Line One
Entity Address, Address Line One
Entity Address, City or Town
Entity Address, City or Town
Entity Address, State or Province
Entity Address, State or Province
Entity Address, Postal Zip Code
Entity Address, Postal Zip Code
City Area Code
City Area Code
Local Phone Number
Local Phone Number
Title of 12(b) Security
Title of 12(b) Security
Trading Symbol
Trading Symbol
Security Exchange Name
Security Exchange Name
Entity Current Reporting Status
Entity Current Reporting Status
Entity Interactive Data Current
Entity Interactive Data Current
Entity Filer Category
Entity Filer Category
Entity Small Business
Entity Small Business
Entity Emerging Growth Company
Entity Emerging Growth Company
Entity Shell Company
Entity Shell Company
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Entity Central Index Key
Entity Central Index Key
Current Fiscal Year End Date
Current Fiscal Year End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
Income Tax Disclosure [Abstract]
Effective income tax rate
Effective Income Tax Rate Reconciliation, Percent
Unrecognized tax benefits
Unrecognized Tax Benefits
Interest on unrecognized tax benefits
Unrecognized Tax Benefits, Interest on Income Taxes Accrued
Reduction in unrecognized tax benefits from expiring statue of limitations within next 12 months
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit
Inventory Disclosure [Abstract]
Oil and oil products
Energy Related Inventory, Crude Oil, Products and Merchandise
Supplies and drums
Energy Related Inventory Supplies and Drums
Energy Related Inventory Supplies and Drums
Solvent and solutions
Energy Related Inventory, Chemicals
Other
Energy Related Inventory Other
Energy Related Inventory and Supplies Other
Total inventories and supplies
Prepaid Supplies
Accounting Policies [Abstract]
Recent Accounting Pronouncements
New Accounting Pronouncements, Policy [Policy Text Block]
Schedule of Long-term Debt Instruments [Table]
Schedule of Long-term Debt Instruments [Table]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Axis]
Long-term Debt, Type [Domain]
Long-term Debt, Type [Domain]
Secured debt
Secured Debt [Member]
Unsecured debt
Unsecured Debt [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
Term Loan Agreement
Term Loan Agreement [Member]
Term Loan Agreement [Member]
Unsecured senior notes, at 4.875%, due July 15, 2027 (2027 Notes)
Senior Unsecured Notes due 2027 [Member]
Senior Unsecured Notes due 2027 [Member]
Unsecured senior notes, at 5.125%, due July 15, 2029 (2029 Notes)
Senior Unsecured Notes due 2029 [Member]
Senior Unsecured Notes due 2029 [Member]
Unsecured senior notes, at 5.125%, due June 1, 2021 (2021 Notes)
Unsecured Senior Notes 2021 [Member]
Unsecured Senior Notes 2021 [Member]
Debt Instrument [Line Items]
Debt Instrument [Line Items]
Current portion of long-term obligations
Long-term Debt, Current Maturities
Long-term obligations, at par
Long-term Debt, Gross
Unamortized debt issuance costs and premium, net
Debt Issuance Costs, Net
Long-term obligations, at carrying value
Long-term Debt, Excluding Current Maturities
Interest rate (as a percentage)
Debt Instrument, Interest Rate, Stated Percentage
Property, Plant and Equipment [Abstract]
PROPERTY, PLANT AND EQUIPMENT
Property, Plant and Equipment Disclosure [Text Block]
INCOME TAXES
Income Tax Disclosure [Text Block]
Leases [Abstract]
ROU assets:
ROU Assets [Abstract]
ROU Assets [Abstract]
Operating leases
Operating Lease, Right-of-Use Asset
Finance leases (included in property, plant and equipment, net)
Finance Lease, Right-of-Use Asset
Current portion of lease liabilities:
Lease, Liability, Current [Abstract]
Lease, Liability, Current [Abstract]
Operating leases
Operating Lease, Liability, Current
Finance leases (included in accrued expenses)
Finance Lease, Liability, Current
Long-term portion of lease liabilities:
Lease, Liability, Noncurrent [Abstract]
Lease, Liability, Noncurrent [Abstract]
Operating leases
Operating Lease, Liability, Noncurrent
Finance leases (included in deferred taxes, unrecognized tax benefits and other long-term liabilities)
Finance Lease, Liability, Noncurrent
Schedule of Inventory
Schedule of Inventory, Current [Table Text Block]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Acquired Company Included in Safety-Kleen and Environmental Services Segments
Acquired Company Included in Safety-Kleen and Environmental Services Segments [Member]
Acquired Company Included in Safety-Kleen and Environmental Services Segments [Member]
Veolia Division
Veolia Division [Member]
Veolia Division [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Goodwill recognized
Goodwill, Acquired During Period
Purchase price
Business Combination, Consideration Transferred
Weighted average amortization period (in years)
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life
Pre-tax (loss) income
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Before Tax
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Before Tax
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table]
Statistical Measurement [Axis]
Statistical Measurement [Axis]
Statistical Measurement [Domain]
Statistical Measurement [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward]
Beginning balance (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number
Granted (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period
Vested (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period
Ending balance (in shares)
Weighted Average Grant-Date Fair Value
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Beginning of period (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value
Granted (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value
Vested (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value
Forfeited (in USD per share)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value
End of period (in USD per share)
Vesting period (in years)
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period
Unrecognized compensation cost
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount
Period for recognition (in years)
Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition
Fair value restricted stock
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value
New Accounting Pronouncements or Change in Accounting Principle [Table]
New Accounting Pronouncements or Change in Accounting Principle [Table]
Adjustments for New Accounting Pronouncements [Axis]
Adjustments for New Accounting Pronouncements [Axis]
Type of Adoption [Domain]
Type of Adoption [Domain]
Accounting Standards Update 2016-02
Accounting Standards Update 2016-02 [Member]
Lease Type [Axis]
Lease Type [Axis]
Lease Type [Axis]
Lease Type [Domain]
Lease Type [Domain]
[Domain] for Lease Type [Axis]
Real Estate Leases
Real Estate Leases [Member]
Real Estate Leases [Member]
Non-Real Estate Leases
Non-Real Estate Leases [Member]
Non-Real Estate Leases [Member]
Short Term Leases
Short Term Leases [Member]
Short Term Leases [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Operating lease right-of-use assets
Total current and noncurrent lease liabilities
Operating Lease, Liability
Term of leases (in years)
Lessee, Operating Lease, Term of Contract
SIGNIFICANT ACCOUNTING POLICIES
Significant Accounting Policies [Text Block]
Equity [Abstract]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Reclassification out of Accumulated Other Comprehensive Income [Table]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Unrealized loss on interest rate hedge
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Unrealized loss on available-for-sale securities
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-sale, Parent [Member]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Axis]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income [Domain]
Reclassification out of Accumulated Other Comprehensive Income
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Interest expense, net of interest income
Interest Income (Expense), Net
Other (expense) income, net
Other Operating Income (Expense), Net
Net income
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Private Held Company
Private Held Company [Member]
Private Held Company [Member]
Summary of restricted stock awards
Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
Summary of performance stock awards
Schedule of Nonvested Performance-based Units Activity [Table Text Block]
Interest costs capitalized adjustment
Interest Costs Capitalized Adjustment
Depreciation inclusive of amortization
Depreciation Inclusive of Amortization
Depreciation Inclusive of Amortization
Schedule of Business Acquisitions, by Acquisition
Schedule of Business Acquisitions, by Acquisition [Table Text Block]
Accounts receivable, including unbilled receivables
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables
Inventories and supplies
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory
Prepaid expenses and other current assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Prepaid Expense and Other Assets
Property, plant and equipment
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment
Permits and other intangibles
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill
Current liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities
Closure and post-closure liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Closure and Post-Closure Liabilities
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Closure and Post-Closure Liabilities
Total identifiable net assets
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net
Goodwill
Goodwill
Total purchase price
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net
Schedule of Lease Expense
Lease, Cost [Table Text Block]
Supplemental Lease Balance Sheet Information
Assets and Liabilities, Lessee [Table Text Block]
Assets and Liabilities, Lessee [Table Text Block]
Schedule of Operating Lease Maturity
Lessee, Operating Lease, Liability, Maturity [Table Text Block]
Schedule of Finance Lease Maturity
Finance Lease, Liability, Maturity [Table Text Block]
Summary of Future Minimum Payments Under Operating Leases
Lessee, Operating Lease, Disclosure [Table Text Block]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Table]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Table]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Table]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Permits
Permits [Member]
The description that pertains to the permits.
Customer and supplier relationships
Customer Relationships [Member]
Other intangible assets
Other Intangible Assets [Member]
Indefinite-lived Intangible Assets by Major Class [Axis]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Trademarks and trade names
Trademarks and Trade Names [Member]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
Schedule of Finite-lived and Indefinite-lived Intangible Assets [Line Items]
[Line Items] for Schedule of Finite-lived and Indefinite-lived Intangible Assets [Table]
Cost
Finite-Lived Intangible Assets, Gross
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Net
Finite-Lived Intangible Assets, Net
Trademarks and trade names
Indefinite-lived Intangible Assets (Excluding Goodwill)
Total permits and other intangible assets, Cost
Intangible Assets, Gross (Excluding Goodwill)
Total permits and other intangible assets, Net
Intangible Assets, Net (Excluding Goodwill)
FINANCING ARRANGEMENTS
Debt Disclosure [Text Block]
Number of finance leases
Number Of Finance Leases
Number Of Finance Leases
Rent expense
Operating Leases, Rent Expense, Net
Segment Reporting [Abstract]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Schedule of Revenues from External Customers and Long-Lived Assets [Table]
Geographical [Axis]
Geographical [Axis]
Geographical [Domain]
Geographical [Domain]
United States
UNITED STATES
Canada
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues from External Customers and Long-Lived Assets [Line Items]
Total assets
Assets
Amortization period (in days)
Capitalized Contract Cost, Amortization Period
Schedule of changes to goodwill
Schedule of Goodwill [Table Text Block]
Summary of indefinite-lived intangible assets
Schedule of Indefinite-Lived Intangible Assets [Table Text Block]
Schedule of finite-lived intangible assets
Schedule of Finite-Lived Intangible Assets [Table Text Block]
Schedule of expected amortization for the net carrying amount of finite lived intangible assets
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]
Commitments and Contingencies Disclosure [Abstract]
Environmental Contingencies [Table]
Environmental Contingencies [Table]
Discloses the specific components (such as the nature, name, and date) of the environmental contingencies and gives the possible estimates, or states that a reasonable estimate cannot be made.
Contingencies by Nature of Contingency [Axis]
Contingencies by Nature of Contingency [Axis]
Quantifies and describes each contingency that exists as of the balance sheet date, by nature of the probable or possible estimates.
Contingency Nature [Domain]
Contingency Nature [Domain]
An existing condition, situation, or a set of circumstances, which involve uncertainty as to the possible outcomes to an enterprise that will ultimately be resolved, when one or more future events occur or fail to occur. Resolution of the uncertainty may confirm the incurrence of a loss or profit or the incurrence of a liability.
Legal and Administrative Proceedings
Legal and Administrative Proceedings [Member]
Represents the actual or potential liabilities that are related to the legal and administrative proceedings.
Ville Mercier
Ville Mercier [Member]
Represents the details that pertain to the Ville Mercier.
Superfund Proceedings
Superfund Proceedings [Member]
Represents the indemnification obligations under federal or state Superfund laws.
ChemWaste
Certain Other Third Party Sites [member]
Represents the details that pertain to Certain Other Third Party Sites.
Kleen Performance Products
Kleen Performance Products [Member]
Kleen Performance Products
Federal and State Enforcement Actions
Federal and State Enforcement Actions [Member]
The regulatory proceedings that are relating primarily to waste treatment, storage or disposal facilities.
Contingencies [Line Items]
Contingencies [Line Items]
-- None. No documentation exists for this element. --
Recorded reserves for actual or probable liabilities
Loss Contingency Accrual
Possible increase in legal and administrative proceedings
Loss Contingency Accrual at Carrying Value Potential Additional Liability
The amount as of the balance sheet date of potential needed increase in the loss contingency reserves.
Number of permits issued by government, for dumping organic liquid
Number of Permits Issued by Government to Dump Organic Liquid
The number of permits that are granted by the government in relation to environmental liabilities.
Number of neighboring municipalities filing separate legal proceedings against the Mercier Subsidiary and the Government of Quebec
Number of Neighboring Municipalities Filing Separate Legal Proceedings
This element represents the number of municipalities other than Ville Mercier that filed legal proceedings against the Mercier Subsidiary.
General damages sought
Loss Contingency, General Damages Sought, Value
Loss Contingency, General Damages Sought, Value
Punitive damages sought
Loss Contingency, Punitive Damages Sought, Value
Loss Contingency, Punitive Damages Sought, Value
Number of proceedings as defendant
Loss Contingency, Pending Claims, Number
Number of product liability claims settled or dismissed
Loss Contingency, Claims Settled and Dismissed, Number
Number of sites owned by third party excluded from cleanup or related liabilities
Site Contingency, Number of Sites
The number of sites that are subject to proceedings under federal or state superfund laws brought against the company or against third parties for which the company may have certain indemnification obligations.
Number of sites owned by the entity subject to proceedings under federal or state superfund laws
Site Contingency, Number of Sites Owned by Entity
The number of sites that are subject to proceedings under federal or state superfund laws that are owned by the entity.
Number of sites owned by third parties
Site Contingency, Number of Sites Owned by Third Party
The number of sites owned by third parties subject to proceedings under federal or state Superfund laws for which the company or the prior owners shipped wastes.
Number of sites for which environmental remediation expense is settled
Site Contingency, Environmental Remediation Expense Settled Number of Sites Owned by Third Party
The number of sites owned by the third party for which environmental remediation expense is settled.
Third party sites requiring expenditure on remediation
Site Contingency, Environmental Remediation Expense Number of Sites Owned by Third Party
The number of sites for which environmental remediation expense is incurred subject to proceedings under federal or state superfund laws owned by third party.
Number of sites not currently requiring expenditures on remediation
Site Contingency, Not Requiring Environmental Remediation Expense Number of Sites Owned by Third Party
The number of sites owned by the third party for which environmental remediation expense is not required.
Minimum potential liability
Loss Contingency, Estimate of Possible Loss
Number of sites which potential liability could exceed $100,000
Number of Sites, Potential Liability Exceeds Substantial Quota
Number of Sites, Potential Liability Exceeds Substantial Quota
Indemnification agreement with third party sites
Site Contingency, Indemnification Agreement Number of Sites Owned by Third Party
The number of sites for which the company has an indemnification agreement from the third party seller.
Notices received from owners of third parties sites seeking indemnifications from the company
Site Contingency, Notice Received Number of Sites Owned by Third Party
The number of notices received from owners of third party sites related to the CSD assets seeking indemnification from the company.
Weighted Average Remaining Lease Term (years)
Weighted Average Remaining Lease Term, Lessee [Abstract]
Weighted Average Remaining Lease Term, Lessee [Abstract]
Operating leases (in years)
Operating Lease, Weighted Average Remaining Lease Term
Finance leases (in years)
Finance Lease, Weighted Average Remaining Lease Term
Weighted Average Discount Rate
Weighted Average Discount Rate, Lessee [Abstract]
Weighted Average Discount Rate, Lessee [Abstract]
Operating leases (as a percentage)
Operating Lease, Weighted Average Discount Rate, Percent
Finance leases (as a percentage)
Finance Lease, Weighted Average Discount Rate, Percent
Payables and Accruals [Abstract]
Accrued expenses
Schedule of Accrued Liabilities [Table Text Block]
STOCK-BASED COMPENSATION
Share-based Payment Arrangement [Text Block]
COMMITMENTS AND CONTINGENCIES
Commitments and Contingencies Disclosure [Text Block]
Statement of Comprehensive Income [Abstract]
Net income
Other comprehensive (loss) income:
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax [Abstract]
Unrealized gains (losses) on available-for-sale securities (net of tax of $2, $7, $60 and $95, respectively)
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax
Reclassification adjustment for losses on available-for-sale securities included in net income
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax
Unrealized loss on interest rate hedge
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, after Tax
Reclassification adjustment for losses on interest rate hedge included in net income
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, after Tax
Foreign currency translation adjustments (including a tax benefit of $5.6 million in the nine months ended September 30, 2018)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent
Other comprehensive (loss) income
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
ACCRUED EXPENSES
Accrued Expenses Disclosure [Text Block]
The entire disclosure for accrued expenses at the end of the reporting period.
Asset Retirement Obligation Disclosure [Abstract]
CLOSURE AND POST-CLOSURE LIABILITIES
Asset Retirement Obligation Disclosure [Text Block]
Forfeited (in shares)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period
Statement of Stockholders' Equity [Abstract]
Common stock, par value (in USD per share)
Common Stock, Par or Stated Value Per Share
ACCUMULATED OTHER COMPREHENSIVE LOSS
Comprehensive Income (Loss) Note [Text Block]
Unrealized gains on available-for-sale securities, taxes
Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, Tax
Foreign current translation adjustments, tax benefit
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax
Closure and Post-closure Liabilities [Table]
Closure and Post-closure Liabilities [Table]
The schedule that reflects each closure and post-closure liabilities, during the period.
Closure and Post-closure Liabilities [Axis]
Closure and Post-closure Liabilities [Axis]
The information about each closure and post-closure liabilities during the period.
Closure and Post-closure Liabilities [Domain]
Closure and Post-closure Liabilities [Domain]
Closure and Post-closure Liabilities [Domain]
Landfill Retirement Liability
Landfill Retirement Liability [Member]
Represents the asset retirement obligations for landfill liability.
Non-Landfill Retirement Liability
Non-Landfill Retirement Liability [Member]
Represents the asset retirement obligations for non-landfill liability.
CLOSURE AND POST-CLOSURE LIABILITIES
Closure and Post Closure Liabilities [Line Items]
-- None. No documentation exists for this element. --
Changes to post-closure liabilities
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance at January 1, 2019
Asset Retirement Obligation
Liabilities assumed in acquisitions
Asset Retirement Obligation, Liabilities Assumed From Business Acquisitions, Originally Reported
Asset Retirement Obligation, Liabilities Assumed from Business Acquisitions, Originally Reported
New asset retirement obligations
Asset Retirement Obligation, Liabilities Incurred
Accretion
Asset Retirement Obligation, Accretion Expense
Changes in estimates recorded to statement of operations
Asset Retirement Obligation, Changes Recorded in Statement of Income
The amount of change in the asset retirement obligation, during the current period, for changes in estimates recorded in the statement of income.
Changes in estimates recorded to balance sheet
Asset Retirement Obligation, Changes Recorded in Balance Sheet
Represents the amount of change in the asset retirement obligation, during the current period for other changes in estimates recorded in the balance sheet.
Expenditures
Asset Retirement Obligation, Liabilities Settled
Currency translation and other
Asset Retirement Obligation, Foreign Currency Translation Gain (Loss)
Balance at September 30, 2019
Credit-adjusted risk-free rate
Asset Retirement Obligations Discount Rate
Asset Retirement Obligations Discount Rate
Debt Instrument Redemption [Table]
Debt Instrument Redemption [Table]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Axis]
Debt Instrument, Redemption, Period [Domain]
Debt Instrument, Redemption, Period [Domain]
Debt Instrument, Redemption, Period One
Debt Instrument, Redemption, Period One [Member]
Debt Instrument, Redemption, Period Two
Debt Instrument, Redemption, Period Two [Member]
Debt Instrument, Redemption, Period Three
Debt Instrument, Redemption, Period Three [Member]
Debt Instrument, Redemption [Line Items]
Debt Instrument, Redemption [Line Items]
Redemption percentage of principal amount
Debt Instrument, Redemption Price, Percentage
Disaggregation of Revenue
Disaggregation of Revenue [Table Text Block]
Contract Balances
Contract with Customer, Asset and Liability [Table Text Block]
Disaggregation of Revenue [Table]
Disaggregation of Revenue [Table]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating segments
Operating Segments [Member]
Corporate Items
Corporate, Non-Segment [Member]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Environmental Services
Environmental Services [Member]
Environmental Services [Member]
Safety-Kleen
Safety-Kleen [Member]
Safety-Kleen [Member]
Product and Service [Axis]
Product and Service [Axis]
Product and Service [Domain]
Product and Service [Domain]
Technical Services
Technical Services [Member]
This element represents the Technical Services segment of the entity.
Field and Emergency Response Services
Field and Emergency Response [Member]
Field and Emergency Response [Member]
Industrial Services
Industrial Services [Member]
Industrial Services [Member]
Oil, Gas and Lodging Services and Other
Oil, Gas and Lodging Services [Member]
Oil, Gas and Lodging Services [Member]
Safety-Kleen Environmental Services
Safetly-Kleen Environmental Services [Member]
Safetly-Kleen Environmental Services [Member]
Safety-Kleen Oil
Safety-Kleen Oil [Member]
Safety-Kleen Oil [Member]
Disaggregation of Revenue [Line Items]
Disaggregation of Revenue [Line Items]
Total third party revenues
Revenue from Contract with Customer, Excluding Assessed Tax
Schedule of Goodwill [Table]
Schedule of Goodwill [Table]
Environmental Services
Goodwill [Line Items]
Goodwill [Line Items]
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Balance at January 1, 2019
Increase from current period acquisitions
Measurement period adjustments from prior period acquisitions
Goodwill, Purchase Accounting Adjustments
Foreign currency translation
Goodwill, Foreign Currency Translation Gain (Loss)
Balance at September 30, 2019
Schedule of closure and post-closure liabilities
Schedule of Change in Asset Retirement Obligation [Table Text Block]
Property, Plant and Equipment
Property, Plant and Equipment [Table Text Block]
Number of operating segments
Number of Operating Segments
Statement of Financial Position [Abstract]
Account receivable, allowances aggregating
Accounts Receivable, Allowance for Credit Loss, Current
Closure and post-closure liabilities, current portion
Accrued Capping, Closure, Post-closure and Environmental Costs
Remedial liabilities, current portion
Accrued Environmental Loss Contingencies, Current
Common stock, authorized shares (in shares)
Common Stock, Shares Authorized
Common stock, issued shares (in shares)
Common Stock, Shares, Issued
Common stock, outstanding shares (in shares)
Common Stock, Shares, Outstanding
Operating Leases
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2019 (three months)
Lessee, Operating Lease, Liability, Payments, Remainder of Fiscal Year
2020
Lessee, Operating Lease, Liability, Payments, Due Year Two
2021
Lessee, Operating Lease, Liability, Payments, Due Year Three
2022
Lessee, Operating Lease, Liability, Payments, Due Year Four
2023
Lessee, Operating Lease, Liability, Payments, Due Year Five
2024
Lessee, Operating Lease, Liability, Payments, Due Year Six
Lessee, Operating Lease, Liability, Payments, Due Year Six
Thereafter
Lessee, Operating Lease, Liability, Payments, Due after Year Six
Lessee, Operating Lease, Liability, Payments, Due after Year Six
Total future lease payments
Lessee, Operating Lease, Liability, Payments, Due
Amount representing interest
Lessee, Operating Lease, Liability, Undiscounted Excess Amount
Total lease liabilities
Finance Leases
Finance Lease, Liability, Payment, Due [Abstract]
2019 (three months)
Finance Lease, Liability, Payments, Remainder of Fiscal Year
2020
Finance Lease, Liability, Payments, Due Year Two
2021
Finance Lease, Liability, Payments, Due Year Three
2022
Finance Lease, Liability, Payments, Due Year Four
2023
Finance Lease, Liability, Payments, Due Year Five
2024
Finance Lease, Liability, Payments, Due Year Six
Finance Lease, Liability, Payments, Due Year Six
Thereafter
Finance Lease, Liability, Payments, Due after Year Six
Finance Lease, Liability, Payments, Due after Year Six
Total future lease payments
Finance Lease, Liability, Payment, Due
Amount representing interest
Finance Lease, Liability, Undiscounted Excess Amount
Total lease liabilities
Finance Lease, Liability
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]
Schedule of Property, Plant and Equipment [Table]
Property, Plant and Equipment [Table]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Axis]
Property, Plant and Equipment, Type [Domain]
Property, Plant and Equipment, Type [Domain]
Land
Land [Member]
Asset retirement costs (non-landfill)
Asset Retirement Obligation Costs [Member]
Landfill assets
Landfill [Member]
Buildings and improvements
Building and Building Improvements [Member]
Camp equipment
Camp Equipment [Member]
Represents the industrial lodging facilities that are utilized in the entity's Industrial Services segment to provide lodging services to companies in the refinery and petrochemical industries.
Vehicles
Vehicles [Member]
Equipment
Equipment [Member]
Furniture and fixtures
Furniture and Fixtures [Member]
Construction in progress
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Line Items]
Total property, plant and equipment, gross
Property, Plant and Equipment, Gross
Less - accumulated depreciation and amortization
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment
Total property, plant and equipment, net
Property, Plant and Equipment, Net
Operating lease cost
Operating Lease, Cost
Finance lease cost:
Lease, Cost [Abstract]
Amortization of ROU asset
Finance Lease, Right-of-Use Asset, Amortization
Interest on lease liability
Finance Lease, Interest Expense
Total finance lease cost
Finance Lease, Cost
Finance Lease, Cost
Short-term lease cost
Short-term Lease, Cost
Variable lease cost
Variable Lease, Cost
Total lease cost
Lease, Cost
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Adjusted EBITDA
Income (Loss) from Continuing Operations before Interest, Tax, Depreciation and Amortization, Net
This element represents the income or loss from continuing operations before interest, taxes, depreciation and amortization to the economic entity.
Reconciliation to Consolidated Statements of Operations:
Reconciliation Between Adjusted EBITDA and Income Statement [Abstract]
Reconciliation Between Adjusted EBITDA and Income Statement [Abstract]
Accretion of environmental liabilities
Accretion of Environmental Liabilities
This element includes accretion expenditure that pertains to asset retirement obligations and environmental remediation.
Depreciation and amortization
Depreciation, Depletion and Amortization
Income from operations
Operating Income (Loss)
Other expense (income), net
Other Nonoperating Income (Expense)
Loss on early extinguishment of debt
Gain (Loss) on Extinguishment of Debt
Interest expense, net of interest income
Interest Income (Expense), Nonoperating, Net
Income before provision for income taxes
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
ASSETS
Assets [Abstract]
Current assets:
Assets, Current [Abstract]
Cash and cash equivalents
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Short-term marketable securities
Marketable Securities, Current
Accounts receivable, net of allowances aggregating $37,998 and $44,315, respectively
Accounts Receivable, after Allowance for Credit Loss, Current
Unbilled accounts receivable
Unbilled Accounts Receivable, Current
The aggregate amount of unbilled receivables due for services rendered or to be rendered at the financial statement date, which are usually due within one year (or one business cycle).
Deferred costs
Debt Issuance Costs, Current, Net
Inventories and supplies
Prepaid expenses and other current assets
Prepaid Expense and Other Assets, Current
Total current assets
Assets, Current
Property, plant and equipment, net
Other assets:
Other Assets, Noncurrent [Abstract]
Permits and other intangibles, net
Other
Other Assets, Noncurrent
Total other assets
Assets, Noncurrent, Excluding Property, Plant and Equipment
Sum of the carrying amounts as of the balance sheet date of all assets (excluding property, plant and equipment) that are expected to be realized in cash, sold or consumed after one year or beyond the normal operating cycle, if longer.
Total assets
LIABILITIES AND STOCKHOLDERS' EQUITY
Liabilities and Equity [Abstract]
Current liabilities:
Liabilities, Current [Abstract]
Accounts payable
Accounts Payable, Current
Deferred revenue
Contract with Customer, Liability, Current
Accrued expenses
Accrued Liabilities, Current
Current portion of closure, post-closure and remedial liabilities
Accrued Capping, Closure, Post Closure and Remedial Liabilities, Current
The amount of estimated costs accrued as of the balance sheet date to comply with regulatory requirements pertaining to the retirement of a waste management facility (such as a landfill or waste treatment facility) and to remediate one or more sites. Represents the portion that will be paid within one year.
Current portion of operating lease liabilities
Total current liabilities
Liabilities, Current
Other liabilities:
Other Liabilities, Noncurrent [Abstract]
Closure and post-closure liabilities, less current portion of $9,896 and $9,592, respectively
Accrued Capping, Closure, Post-closure and Environmental Costs, Noncurrent
Remedial liabilities, less current portion of $17,090 and $13,442, respectively
Accrued Environmental Loss Contingencies, Noncurrent
Long-term obligations, less current portion
Operating lease liabilities, less current portion
Deferred taxes, unrecognized tax benefits and other long-term liabilities
Unrecognized Tax Benefits and Other Long-term Liabilities, Noncurrent
The noncurrent portion of the amount that is recognized for the unrecognized tax benefits and other long-term liabilities as of the balance sheet date.
Total other liabilities
Liabilities, Noncurrent
Commitments and contingent liabilities (See Note 16)
Commitments and Contingencies
Stockholders’ equity:
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Authorized 80,000,000 shares; issued and outstanding 55,807,524 and 55,847,261 shares, respectively
Common Stock, Value, Issued
Additional paid-in capital
Additional Paid in Capital, Common Stock
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Accumulated earnings
Retained Earnings (Accumulated Deficit)
Total stockholders’ equity
Stockholders' Equity Attributable to Parent
Total liabilities and stockholders’ equity
Liabilities and Equity
2019 (three months)
Finite-Lived Intangible Assets, Amortization Expense, Remainder of Fiscal Year
2020
Finite-Lived Intangible Assets, Amortization Expense, Year Two
2021
Finite-Lived Intangible Assets, Amortization Expense, Year Three
2022
Finite-Lived Intangible Assets, Amortization Expense, Year Four
2023
Finite-Lived Intangible Assets, Amortization Expense, Year Five
Thereafter
Finite-Lived Intangible Assets, Amortization Expense, after Year Five
Insurance
Accrued Insurance, Current
Interest
Interest Payable, Current
Compensation and benefits
Employee-related Liabilities, Current
Income, real estate, sales and other taxes
Taxes Payable, Current
Other
Other Accrued Liabilities, Current
Total accrued expenses
Reconciliation of third party revenues to direct revenues
Schedule of Segment Revenues [Table Text Block]
Tabular disclosure of the direct revenues for each reportable segment, including a reconciliation to consolidated third party revenues.
Reconciliation to consolidated statements of income from adjusted EBITDA
Schedule of Reconciliation of Net Income to Adjusted Earnings before Interest Tax Depreciation and Amortization Consolidated [Table Text Block]
This element may be used to capture the complete disclosure of the identification, description, and amounts of all significant reconciling items used in the reconciliation of net income to adjusted earnings before interest, tax, depreciation and amortization of continuing operations.
PP&E, intangible assets and total assets by segment
Schedule Of Property Plant And Equipment, Intangible Assets And Total Assets By Segment [Table Text Block]
Tabular disclosure of property, plant and equipment, intangible assets, and total assets for each reportable segment, including a reconciliation to consolidated amounts.
Schedule of assets by reported segment
Schedule of Segment Total Assets [Table Text Block]
Tabular disclosure of total assets for each reportable segment, including a reconciliation to consolidated amounts.
Total assets by geographical area
Schedule of Total Assets by Geographical Area [Table Text Block]
Tabular disclosure of total assets by geographical area, including a reconciliation to consolidated amounts.
Accumulated Other Comprehensive Income (Loss) [Table]
Accumulated Other Comprehensive Income (Loss) [Table]
Foreign Currency Translation
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Unrealized (Losses) Gains on Available-For-Sale Securities
Unrealized Losses on Interest Rate Hedge
Unfunded Pension Liability
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Total
AOCI Attributable to Parent [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Components of Other Accumulated Income, Net of Tax [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance beginning of period
Other comprehensive income (loss) before tax effects
OCI, before Reclassifications, before Tax, Attributable to Parent
Tax impact related to items in other comprehensive income (loss)
Other Comprehensive Income (Loss), Tax, Portion Attributable to Parent
Amounts reclassified out of accumulated other comprehensive loss
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent
Balance ending of period
LEASES
Lessee, Finance Leases [Text Block]
LEASES
Lessee, Operating Leases [Text Block]
Amortization of permits and other intangible assets
Amortization of Intangible Assets
Safety-Kleen
Intersegment revenues, net
Intersegment Eliminations [Member]
Corporate Items, net
Segment Reconciling Items [Member]
Operating and Corporate non-segment
Operating Segments And Corporate Non Segment [Member]
Operating Segments And Corporate Non Segment [Member]
Total revenues
Property, plant and equipment, net
Intangible Assets, Net (Including Goodwill)
Intangible Assets, Net (Including Goodwill)
Stock-based compensation
Share-based Payment Arrangement, Expense
Income tax benefit
Share-based Payment Arrangement, Expense, Tax Benefit
Income Statement [Abstract]
Interest income
Investment Income, Interest
REVENUES
Revenue from Contract with Customer [Text Block]
SEGMENT REPORTING
Segment Reporting Disclosure [Text Block]
Statement [Table]
Statement [Table]
Service
Service [Member]
Product
Product [Member]
Statement [Line Items]
Statement [Line Items]
Revenues:
Revenues [Abstract]
Cost of revenues: (exclusive of items shown separately below)
Cost of Revenue [Abstract]
Total cost of revenues
Cost of Goods and Services Sold
Selling, general and administrative expenses
Selling, General and Administrative Expense
Other (expense) income, net
Loss on early extinguishment of debt
Interest expense, net of interest income of $1,152, $736, $2,981 and $2,086, respectively
Provision for income taxes
Income Tax Expense (Benefit)
Net income
Earnings per share:
Basic (in USD per share)
Diluted (in USD per share)
Shares used to compute earnings per share - Basic (in shares)
Shares used to compute earnings per share - Diluted (in shares)
INVENTORIES AND SUPPLIES
Inventory Disclosure [Text Block]
Common Stock
Common Stock [Member]
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Loss
Accumulated Earnings
Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity
Balance beginning of period (in shares)
Shares, Issued
Net income (loss)
Cumulative effect of change in accounting principle
Cumulative Effect of New Accounting Principle in Period of Adoption
Other comprehensive (loss) income
Stock-based compensation
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture
Issuance of restricted shares, net of shares remitted and tax withholdings
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures
Issuance of restricted shares, net of shares remitted and tax withholdings (in shares)
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures
Repurchases of common stock
Repurchases of common stock (in shares)
Balance ending of period (in shares)
EARNINGS PER SHARE
Earnings Per Share [Text Block]
Derivative Instrument [Axis]
Derivative Instrument [Axis]
Derivative Contract [Domain]
Derivative Contract [Domain]
Interest Rate Swap
Interest Rate Swap [Member]
Variable Rate [Axis]
Variable Rate [Axis]
Variable Rate [Domain]
Variable Rate [Domain]
Eurodollar
Eurodollar [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Revolving Credit Facility
Revolving Credit Facility [Member]
Line of Credit
Line of Credit [Member]
2021 Notes
Term Loans with Interest Rate Swap Agreements
Term Loans with Interest Rate Swap Agreements [Member]
Term Loans with Interest Rate Swap Agreements [Member]
Debt aggregate principal amount
Debt Instrument, Face Amount
Revolving credit facility maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Debt outstanding
Long-term Debt
Available to borrow and outstanding letters of credit
Line of Credit Facility, Remaining Borrowing Capacity
Outstanding letters of credit
Letters of Credit Outstanding, Amount
Redemption percentage (up to)
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed
Purchased notes
Debt Instrument, Repurchase Amount
Repayments of debt
Repayments of Debt
Accrued interest
Debt Instrument, Increase, Accrued Interest
Loss on early extinguishment
Debt fair value
Long-term Debt, Fair Value
Notional amount of interest rate swap agreements
Derivative, Notional Amount
Interest rate percentage
Debt Instrument, Basis Spread on Variable Rate
Effective interest rate percentage
Debt Instrument, Interest Rate, Effective Percentage
Derivative liability
Derivative Liability
2019
Operating Leases, Future Minimum Payments, Remainder of Fiscal Year
2020
Operating Leases, Future Minimum Payments, Due in Two Years
2021
Operating Leases, Future Minimum Payments, Due in Three Years
2022
Operating Leases, Future Minimum Payments, Due in Four Years
2023
Operating Leases, Future Minimum Payments, Due in Five Years
Thereafter
Operating Leases, Future Minimum Payments, Due Thereafter
Total minimum lease payments
Operating Leases, Future Minimum Payments Due
Statement of Cash Flows [Abstract]
Cash flows from operating activities:
Net Cash Provided by (Used in) Operating Activities [Abstract]
Adjustments to reconcile net income to net cash from operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Allowance for doubtful accounts
Accounts Receivable, Credit Loss Expense (Reversal)
Amortization of deferred financing costs and debt discount
Amortization of Debt Issuance Costs and Discounts
Changes in environmental liability estimates
Other Increase (Decrease) in Environmental Liabilities
Deferred income taxes
Deferred Income Tax Expense (Benefit)
Other (income) expense, net
Other Noncash Income (Expense)
Stock-based compensation
Share-based Payment Arrangement, Noncash Expense
Environmental expenditures
Payments for Environmental Liabilities
Changes in assets and liabilities, net of acquisitions
Increase (Decrease) in Operating Capital [Abstract]
Accounts receivable and unbilled accounts receivable
Increase (Decrease) in Accounts Receivable
Inventories and supplies
Increase (Decrease) in Inventories
Other current and non-current assets
Increase (Decrease) in Other Operating Assets
Accounts payable
Increase (Decrease) in Accounts Payable
Other current and long-term liabilities
Increase (Decrease) in Other Operating Liabilities
Net cash from operating activities
Net Cash Provided by (Used in) Operating Activities
Cash flows used in investing activities:
Net Cash Provided by (Used in) Investing Activities [Abstract]
Additions to property, plant and equipment
Payments to Acquire Property, Plant, and Equipment
Proceeds from sale and disposal of fixed assets
Proceeds from Sale of Productive Assets
Acquisitions, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Additions to intangible assets including costs to obtain or renew permits
Payments to Acquire Intangible Assets
Proceeds from sale of available-for-sale securities
Proceeds from Sale of Debt Securities, Available-for-sale
Purchases of available-for-sale securities
Payments to Acquire Debt Securities, Available-for-sale
Net cash used in investing activities
Net Cash Provided by (Used in) Investing Activities
Cash flows used in financing activities:
Net Cash Provided by (Used in) Financing Activities [Abstract]
Change in uncashed checks
Increase (Decrease) in Outstanding Checks, Financing Activities
Tax payments related to withholdings on vested restricted stock
Payment, Tax Withholding, Share-based Payment Arrangement
Repurchases of common stock
Payments for Repurchase of Common Stock
Deferred financing costs paid
Payments of Financing Costs
Premiums paid on early extinguishment of debt
Payment for Debt Extinguishment or Debt Prepayment Cost
Payments on finance lease
Finance Lease, Principal Payments
Principal payments on debt
Repayments of Unsecured Debt
Issuance of unsecured senior notes
Proceeds from Issuance of Unsecured Debt
Issuance of secured senior notes, net of discount
Proceeds from Issuance of Secured Debt
Borrowing from revolving credit facility
Proceeds from Lines of Credit
Net cash used in financing activities
Net Cash Provided by (Used in) Financing Activities
Effect of exchange rate change on cash
Effect of Exchange Rate on Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents
Increase (decrease) in cash and cash equivalents
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect
Cash and cash equivalents, beginning of period
Cash and cash equivalents, end of period
Supplemental information:
Supplemental Cash Flow Information [Abstract]
Cash payments for interest and income taxes:
Cash Payments for Interest and Income Taxes [Abstract]
Description and amounts of long lived assets and liabilities held for sale. Disclosure may include the description of the facts and circumstances leading to the expected disposal, manner and timing of disposal, the carrying value of the assets and liabilities held for sale, the gain or loss recognized in the income statement and the income statement caption that includes that gain or loss.
Interest paid
Interest Paid, Excluding Capitalized Interest, Operating Activities
Income taxes paid
Income Taxes Paid, Net
Cash paid for amounts included in the measurement of lease liabilities:
Cash Flow, Lessee [Abstract]
Cash Flow, Lessee [Abstract]
Operating cash flows from operating leases
Operating Lease, Payments
Operating cash flows from finance lease
Finance Lease, Interest Payment on Liability
Financing cash flows from finance lease
Non-cash investing activities:
Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract]
Property, plant and equipment accrued
Noncash or Part Noncash Acquisition, Value of Assets Acquired
ROU assets obtained in exchange for new operating lease liabilities
Right-of-Use Asset Obtained in Exchange for Operating Lease Liability
ROU assets obtained in exchange for new finance lease liabilities
Right-of-Use Asset Obtained in Exchange for Finance Lease Liability
Schedule of accumulated other comprehensive loss
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Reclassification out of accumulated other comprehensive income
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]